Continuous Concave Fillet Donut Gauge

Had a new idea for a fillet gauge, and I'm a sucker for new ideas. It can theoretically measure any fillet radius between 0.05" and 0.45", since the fillet radius on the outside edge changes smoothly around the circumference. Simply match up the edge of the disc to the fillet you seek to measure, and interpolate between the marked numbers. Practically though, resolution is probably limited by user skill, size of the design, printing tolerance, etc. But I've never seen a gauge like it, so here it is. Maybe it can inspire one of y'all. Also I suppose one could use this for clay sculpting, but I don't sculpt so I don't know. Other designs that do much more than inspiration or measurement: [creation manual-spiral-drawing-machine] [creation lite-bear-trap] [creation improved-binder-clip-bottle-trap-for-small-game]